Really, if he makes 7 times what you do, you may HAVE to file for divorce just to get a temporary order for support going.
You could, of course, detail the household expenses and give it to him and see if he comes through - usually they have NO idea where the money used to go and are SHOCKED - SHOCKED I say - to discover that two households are more expensive than one.
But be careful here - any expense report that you give him, might be used to establish a precedent in court for how much you need, so don't skimp.
As for your girls - it's natural that they feel rejected too. But you need to be careful - they should NOT feel like they have to side with you, and you should be careful not to let them see all your pain. Better that they see you as the strong sane mom who says "We will get through this just fine" and encourage them not to completely cut ties with their dad. (Also, the courts like to accuse women in your sitch of "parental alienation", it can get very nasty so don't give him any ammunition for that).
